Expose usage counts when streaming ai responses #2003
Description
Following request from discord:
We want to expose usage counts in streamed ai responses.
They require adding the usage data in our ai stream handlers:
https://github.com/HeyPuter/puter/blob/main/src/backend/src/modules/puterai/lib/OpenAIUtil.js#L89
https://github.com/HeyPuter/puter/blob/main/src/backend/src/modules/puterai/ClaudeService.js#L307